1. Medical Management Centre, Department of Learning, Informatics, Management and Ethics; Karolinska Institutet; Stockholm Sweden
2. Department of Psychology; Umeå University; Umeå Sweden
3. School of Health, Care and Social Welfare; Mälardalen University; Västerås Sweden
4. Institute of Work Psychology; University of Sheffield; Sheffield UK
5. Centre for Epidemiology and Community Medicine; Stockholm Sweden